Objectives

• Learn why server-side JavaScript (Node.js) is useful.
• Learn the design and architecture of Node.js applications.
• Build an HTTP server using the core modules in Node.js.
• Developing web applications with ExpressJS.
• Developing scalable REST endpoints with ExpressJS.
• Gain proficiency in utilizing NPM.

Prerequisites

• A prerequisite for participation is proficiency in programming.
• Familiarity with Web Applications is essential for all participants.
• Basic understanding of JavaScript is a requirement for participants.
• Prerequisites Tutorial

Contents

Introduction

• What is Node.js?
• Why Node.js?
• Node Modules
• Node Built-in packages.
• Creating your own package.
• Import your own Package.
• NPM (Node Package Manager)
• Local and Global Packages
• Nodejs architecture

Asynchronous Programming

• What is Asynchronous Programming in JavaScript?
• JavaScript EventLoop
• Call Stack
• Callbacks
• Callback Hell
• Promises
• Promise Chaining
• Async and Await
• Event Emitter

Built-In Libraries

• Working with the Operating System
• Working with the File System
• Console and Utilities
• Debugging

File System

• Synchronous and Asynchronous IO
• Listing and reading directories and files.
• Writing and updating to files
• File System Watcher

Stream and Events

• What are Streams in Node.js
• Reading and Writing Streams
• Understanding and using EventEmitter class
• Emitting Events
• Responding to events

NPM

• What Is a Package
• Typical NPM Usage
• NPM Help
• Creating a Package.json
• Setting Defaults
• Installing Packages
• Listing Installed Packages
• Installing Global Packages
• Removing a Package
• Installing Specific Versions
• The NPM Registry
• Searching for Packages
• Pruning
• Using Simple Scripts
• Publishing Your Package

HTTP and REST

• The HTTP protocol
• Node HTTP Module
• Making a request and response mechanism
• Build a web server
• Serving to files
• Serving to Json Data
• Collection post data from web pages
• Scaling the application

ExpressJS

• What is ExpressJS
• The model-view-controller pattern
• Creating a simple HTTPServer using ExpressJS
• Building a front-end controller
• Routing in Express
• Templating in Express
• Templating using JADE
• Defining routes
• Middlewares

ExpressJS and MongoDB

• What is MongoDB
• MongoDB Advantages
• Documents Collections
• Mongoose ODM
• Creating Schemas and Models using mongoose
• CRUD Operations in MongoDB using Mongoose and Express

Working with Web Sockets

• Creating a web socket server
• Broadcasting message with web sockets
• Creating web sockets with Sockets.io.
• Realtime interaction with Socket.io

ExpressJS and REST

• Understanding the principles of REST
• Richardson Maturity Model
• Creating a RESTful Web Service using Node Express
• Data Exchange Formats JSON vs. XML
• Monolith Architecture
• Microservice Architecture
• Securing REST services

Building Scalable application using NodeJS

• Worker Threads
• Child Process
• Cluster Modules
• Cloud Deployment

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